Nut-lock.



No. 832,998. PATENTBD' OCT. 9, 190.6.

' J. R. PENNY.

NUT LOCK.

APPLIULTION TILED HAY 1'7, 190B.

A a H a.

I V v alllllllllllllllnllllIllllll-lfll l 1n: NORRIS PITERS :0. WASHINGTON, b. c.

JOHN R. PENNY, OF NEW SHEFFIELD, PENNSYLVANIA.

NUT-LOCK.

Specification of Letters Patent.

Patented Oct. 9, 1906.

Application filed May 17,1906. Serial No. 317,278.

To all whom it natty concern.-

Be it known that I, JOHN R. PENNY, a citi- Zen of the United States of America, residing at New Sheffield, in the county of Beaver and State of Pennsylvania, have in vented certain new and useful Improvements in Nut-Looks, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates, to nut-locks and the prime object thereof is to provide asimple device that can be readily applied to two or more bolts to prevent the nuts thereof from rotating.

Another feature of the present invention is the combination of elements by means of which not only is a nut held against movement, but the nut-holding mechanism also serves the purpose of locking the device in operative relation upon the bolt.

Devices of this character in order to be practical must not only be inexpensive to construct, but of astrong and durable nature, and it is of the utmost importance that the structure be such as will permit of easy and rapid application to bolts, for the reason that time, as a eneral rule, is of greater value than the loc itself.

It is the principal object of the present invention to provide a nut-lock that combines both of the desirable features as above pointed out. In the embodiments of the present invention, to be hereinafter described, and shown in the accompanying drawings, the preferred form of construction has been illustrated; It will be understood that such changes can be made therefrom that are within the scope of the claims hereto appended.

In the drawings, Figure 1 is a plan of my improved nut-lock, showing a piece of material, nuts, and belts in connection with which it is used. Fig. 2 is a longitudinal sectional view of the same. Fig. 3 is a perspective view of the nut-lock, illustrating the manner of applying the lock to two nuts.

Fig. 4 is a perspective view of a retainingplate, and Fig. 5 is a perspective view of a locking-plate.

' Similar numerals of reference designate corresponding parts in all the figures of the drawings.

The nut-lock as shown in the accompanying drawings consists of two elementsa retaining-plate and a locking-plate-which are constructed, arranged, and applied in the following-described manner: The retainingplate 1 is preferably rectangular in form and is provided with an elongated slot or bo1topening 2 and outwardly-bent ends 3 3, said ends being provided with slots 4 4, employed for retaining the locking-plate in engagement with the plate 1. The longitudinallydisposed sides ofthe plate 1 are provided with lugs or teats 5 5, and as I preferably construct the plate of a resilient-metal, as

sheet metal, the lugs orteats 5 5, togetherwith the ends 3 3 of the plate 1, can be-easily bent. In combination with the retainingplate 1 the locking-plate 6 is employed. The plate is substantially rectangular and is provided with an elongated slot or nut-opening 7, while the ends of the plate are provided with split lugs or teats 8 8. Assuming that the nuts 9 9 have not been placed upon the threaded ends of the screw-bolts 10 -10,which pass through the piece of material 11, the retaining-plate 1 is placed upon the threaded ends or shanks of the bolts 10 10, and then the nuts 9 9 are rotated into engagement with the retaining-plate 1 to hold the plate firmly against the piece of material 11. The

lockinglate 6, which is also made of a resilient piece of material, is designed to fit over the nuts 9 9, and in order that it may be placed in engagement with said nuts the plate is bent, (see Fig. 3,) whereby the split lugs or teats 8 8 may be inserted in the-slots 4 4 of the bent ends 3 3 of the plate 1. The nutopening 7 of the plate 6 is adapted to receive the nuts 9 9 and prevent the nuts from rotating, the flat faces of the nuts lying parallel with the longitudinal edges of the nut-opening 7. The split lugs or teats 8 8 are then bent, as at-12, to prevent the locking-plate 6 from becoming accidentally detached from the retaining-plate 1 or the nuts 9 9; but to further insure its positive engagement with said nuts the lugs or teats 5 5 are bent upwardly to embrace the longitudinal outer edges of the locking-plate 6.

It will thus be seen. that an exceedingly simple construction has been devised, which may be stamped out of sheet metal and can be readily applied to two or more bolts to firmly lock the nuts mounted upon said bolts thereon. It will be observed that the retaining-plate not only looks the lockingplate against relative movement, but it prevents any longitudinal play of said plate upon the nuts, and thus prevents the nuts from rotating.

IIO

From the foregoing it is thought that the construction, operation, and many advantages of the herein-described invention Wi ll be apparent to those skilled in the art Without furtherdescription, and such changes in the size, shape, proportion, and minor details of construction as are permissible by the appended claims may be resorted to without departing from the spir t and scope of the invention. i

What I claim, and desire to secure by Let ters Patent, is

1. In a nut-lock, the combination with bolts and nuts, of a retaining-plate adapted to fit upon the ends of said bolts, said plate having its ends bent and slotted, lugs or. teats carried by the longitudinally-disposed edges of ,said plate, a yielding locking-plate adapted to engage two sides of each nut, split lugs carried by said locking-plate and adapted tolengage in the slotted bent ends of said retainingplate, substantially as described.

2. A nut-lock comprising a longitudinallyslotted retainingplate having outwardlybent slotted ends, a yielding locking-plate adapted to be sprung into position between the ends of the retaining-plate and having lugs on its ends to engage in the slots of said outwardly-bent ends of the retaining-plate, and lugs on the marginal edges of the retaining-plate for engagement with the locking plate, in combination With bolts projecting through the slot in the retaining-plate, and nuts on said bolts received in the slot of said locking-plate.

In testimony whereof I afiix my signature in the presence of two Witnesses.

JOHN R. PENNY.

Witnesses:

J. A. DAVIDSONS. I. N. OocKsE. 

